Endotracheal tube



FIG. 1 is a diagrammatic perspective view of the endotracheal tube;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view of the endotracheal tube;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a front elevational view thereof; 

The ornamental design for a endotracheal tube, as shown and described. 